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Gallery: ERDF Expansion
Title:
Keywords: ERDF, supercell 9, landfill
Description:
The expansion of Hanford’s onsite landfill, the Environmental Restoration Disposal Facility, continues as workers install the liner and collection system for super cell 9. The system collects and removes liquid, or leachate, as it drains through the waste materials. The liner consists of a low-permeability compacted soil layer, two layers of 60-mil high-density polyethylene (HDPE), a 1-foot layer of gravel with a 12-inch perforated drainage pipe, a geocomposite layer, and two geotextile layers. A 3-foot protective soil layer covers the liner system.